SEARCH Articles Figures Tables Cation capacity Cation exchange Cation exchange capacity smectite Cation exchange smectite Cation exchangers Cationic clays Cationic exchangers Cations cation exchange Clay cation-exchange capacity Clays cation exchange Clays smectites Exchange capacity Exchangeable cations Smectite Smectite clays Smectite exchanger Smectites Smectites, cation exchange capacity